Buggy code:
public ; public static final String ABSTRACT_ATTRIBUTE = "abstract" ; public static final String SCOPE_ATTRIBUTE = "scope" ; public static final String SINGLETON_ATTRIBUTE = "singleton" ; public static final String LAZY_INIT_ATTRIBUTE = "lazy-init" ; public static final String AUTOWIRE_ATTRIBUTE = "autowire" ; public static final String AUTOWIRE_CANDIDATE_ATTRIBUTE = "autowire-candidate" ; public static final String PRIMARY_ATTRIBUTE = "primary" ; public static final String DEPENDENCY_CHECK_ATTRIBUTE = "dependency-check" ; public static final String DEPENDS_ON_ATTRIBUTE = "depends-on" ; public static final String INIT_METHOD_ATTRIBUTE = "init-method" ; public static final String DESTROY_METHOD_ATTRIBUTE = "destroy-method" ; public static final String FACTORY_METHOD_ATTRIBUTE = "factory-method" ; public static final String FACTORY_BEAN_ATTRIBUTE = "factory-bean" ; public static final String CONSTRUCTOR_ARG_ELEMENT = "constructor-arg" ; public static final String INDEX_ATTRIBUTE = "index" ; public static final String TYPE_ATTRIBUTE = "type" ; public static final String VALUE_TYPE_ATTRIBUTE = "value-type" ; public static final String KEY_TYPE_ATTRIBUTE = "key-type" ; public static final String PROPERTY_ELEMENT = "property" ; public static final String REF_ATTRIBUTE = "ref" ; public static final String VALUE_ATTRIBUTE = "value" ; public static final String LOOKUP_METHOD_ELEMENT = "lookup-method" ; public static final String REPLACED_METHOD_ELEMENT = "replaced-method" ; public static final String REPLACER_ATTRIBUTE = "replacer" ; public static final String ARG_TYPE_ELEMENT = "arg-type" ; public static final String ARG_TYPE_MATCH_ATTRIBUTE = "match" ; public static final String REF_ELEMENT = "ref" ; public static final String IDREF_ELEMENT = "idref" ; public static final String BEAN_REF_ATTRIBUTE = "bean" ; public static final String LOCAL_REF_ATTRIBUTE = "local" ; public static final String PARENT_REF_ATTRIBUTE = "parent" ; public static final String VALUE_ELEMENT = "value" ; public static final String NULL_ELEMENT = "null" ; public static final String ARRAY_ELEMENT = "array" ; public static final String LIST_ELEMENT = "list" ; public static final String SET_ELEMENT = "set" ; public static final String MAP_ELEMENT = "map" ; public static final String ENTRY_ELEMENT = "entry" ; public static final String KEY_ELEMENT = "key" ; public static final String KEY_ATTRIBUTE = "key" ; public static final String KEY_REF_ATTRIBUTE = "key-ref" ; public static final String VALUE_REF_ATTRIBUTE = "value-ref" ; public static final String PROPS_ELEMENT = "props" ; public static final String PROP_ELEMENT = "prop" ; public static final String MERGE_ATTRIBUTE = "merge" ; public static final String QUALIFIER_ELEMENT = "qualifier" ; public static final String QUALIFIER_ATTRIBUTE_ELEMENT = "attribute" ; public static final String DEFAULT_LAZY_INIT_ATTRIBUTE = "default-lazy-init" ; public static final String DEFAULT_MERGE_ATTRIBUTE = "default-merge" ; public static final String DEFAULT_AUTOWIRE_ATTRIBUTE = "default-autowire" ; public static final String DEFAULT_DEPENDENCY_CHECK_ATTRIBUTE = "default-dependency-check" ; public static final String DEFAULT_AUTOWIRE_CANDIDATES_ATTRIBUTE = "default-autowire-candidates" ; public static final String DEFAULT_INIT_METHOD_ATTRIBUTE = "default-init-method" ; public static final String DEFAULT_DESTROY_METHOD_ATTRIBUTE = "default-destroy-method" ; protected final Log logger = LogFactory . getLog ( getClass ( ) ) ; private final XmlReaderContext readerContext ; private DocumentDefaultsDefinition defaults ; private ParseState parseState = new ParseState ( ) ; private final Set < String > usedNames = new HashSet < String > ( ) ; public BeanDefinitionParserDelegate ( XmlReaderContext readerContext ) { } public final XmlReaderContext getReaderContext ( ) { } protected Object extractSource ( Element ele ) { } protected void error ( String message , Node source ) { } protected void error ( String message , Element source ) { } protected void error ( String message , Element source , Throwable cause ) { } public void initDefaults ( Element root ) { } public DocumentDefaultsDefinition getDefaults ( ) { } public BeanDefinitionDefaults getBeanDefinitionDefaults ( ) { } public String [ ] getAutowireCandidatePatterns ( ) { } public BeanDefinitionHolder parseBeanDefinitionElement ( Element ele ) { } public BeanDefinitionHolder parseBeanDefinitionElement ( Element ele , BeanDefinition containingBean ) { } protected void checkNameUniqueness ( String beanName , List < String > aliases , Element beanElement ) { } public AbstractBeanDefinition parseBeanDefinitionElement ( Element ele , String beanName , BeanDefinition containingBean ) { } public AbstractBeanDefinition parseBeanDefinitionAttributes ( Element ele , String beanName , BeanDefinition containingBean , AbstractBeanDefinition bd ) { } protected AbstractBeanDefinition createBeanDefinition ( String className , String parentName ) throws ClassNotFoundException { } public void parseMetaElements ( Element ele , BeanMetadataAttributeAccessor attributeAccessor ) { } public int getAutowireMode ( String attValue ) { } public int getDependencyCheck ( String attValue ) { } public void parseConstructorArgElements ( Element beanEle , BeanDefinition bd ) { } public void parsePropertyElements ( Element beanEle , BeanDefinition bd ) { } public void parseQualifierElements ( Element beanEle , AbstractBeanDefinition bd ) { } public void parseLookupOverrideSubElements ( Element beanEle , MethodOverrides overrides ) { } public void parseReplacedMethodSubElements ( Element beanEle , MethodOverrides overrides ) { } public void parseConstructorArgElement ( Element ele , BeanDefinition bd ) { } public void parsePropertyElement ( Element ele , BeanDefinition bd ) { } public void parseQualifierElement ( Element ele , AbstractBeanDefinition bd ) { } public Object parsePropertyValue ( Element ele , BeanDefinition bd , String propertyName ) { } public Object parsePropertySubElement ( Element ele , BeanDefinition bd ) { } public Object parsePropertySubElement ( Element ele , BeanDefinition bd , String defaultValueType ) { } public Object parseIdRefElement ( Element ele ) { } public Object parseValueElement ( Element ele , String defaultTypeName ) { } protected TypedStringValue buildTypedStringValue ( String value , String targetTypeName ) throws ClassNotFoundException { } public Object parseArrayElement ( Element arrayEle , BeanDefinition bd ) { } public List parseListElement ( Element collectionEle , BeanDefinition bd ) { } public Set parseSetElement ( Element collectionEle , BeanDefinition bd ) { } protected void parseCollectionElements ( NodeList elementNodes , Collection < Object > target , BeanDefinition bd , String defaultElementType ) { } public Map parseMapElement ( Element mapEle , BeanDefinition bd ) { } protected final Object buildTypedStringValueForMap ( String value , String defaultTypeName , Element entryEle ) { } protected Object parseKeyElement ( Element keyEle , BeanDefinition bd , String defaultKeyTypeName ) { } public Properties parsePropsElement ( Element propsEle ) { } public boolean parseMergeAttribute ( Element collectionElement ) { } public BeanDefinition parseCustomElement ( Element ele ) { } public BeanDefinition parseCustomElement ( Element ele , BeanDefinition containingBd ) { } public BeanDefinitionHolder decorateBeanDefinitionIfRequired ( Element ele , BeanDefinitionHolder definitionHolder ) { } public BeanDefinitionHolder decorateBeanDefinitionIfRequired ( Element ele , BeanDefinitionHolder definitionHolder , BeanDefinition containingBd ) { } private BeanDefinitionHolder decorateIfRequired ( Node node , BeanDefinitionHolder originalDef , BeanDefinition containingBd ) { String namespaceUri = node . getNamespaceURI ( ) ; if ( ! ( isDefaultNamespace ( namespaceUri ) ) ) { NamespaceHandler handler = this . readerContext . getNamespaceHandlerResolver ( ) . resolve ( namespaceUri ) ; if ( handler != null ) { return handler . decorate ( node , originalDef , new ParserContext ( this . readerContext , this , containingBd ) ) ; } else <START_BUG> if ( namespaceUri . startsWith ( "http:////www.springframework.org//" ) ) { <END_BUG>

Fix:
if ( ( namespaceUri != null ) && ( namespaceUri . startsWith ( "http:////www.springframework.org//" ) ) ) {